commit x64 compilation from lulu cause the other branch dont seems to compile properly at home
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201
include/modules/tools/geometry_merge.cpp
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201
include/modules/tools/geometry_merge.cpp
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/* -----------------------------------------------------------------------------
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GSFramework
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Copyright 2001-2013 Emmanuel Julien. All Rights Reserved.
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----------------------------------------------------------------------------- */
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#include "tools/geometry_merge.h"
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#include "core/geometry.h"
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#include "math/matrix4.h"
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#include "log/log.h"
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using namespace GS::Core;
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//------------------------------------------------------------------------------
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Geometry *GS::Core::MergeGeometry(Geometry *geo_a, Geometry *geo_b, const Matrix4 *mtx_a, const Matrix4 *mtx_b)
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{
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if (!geo_a || !geo_b)
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__ERR__(__LOG_E__ << "Cannot merge NULL geometry.\n", NULL)
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if (!mtx_a)
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mtx_a = &Matrix4::IdentityMatrix();
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if (!mtx_b)
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mtx_b = &Matrix4::IdentityMatrix();
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// Allocate a new geometry.
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Geometry *geo_o = new Geometry;
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if (!geo_o)
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__ERR__(__LOG_E__ << "Failed to allocate merged geometry.\n", NULL)
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geo_o->name = geo_a->name; // Nothing fancy here, the string length would blow up on large merge.
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// Update data for all geometries.
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if (geo_a->pol_normal || geo_b->pol_normal)
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{
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geo_a->ComputePolygonNormal();
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geo_b->ComputePolygonNormal();
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}
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if (geo_a->vtx_normal || geo_b->vtx_normal)
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{
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geo_a->ComputeVertexNormal();
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geo_b->ComputeVertexNormal();
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}
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// Append vertex.
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if (geo_o->vtx.Allocate(geo_a->vtx.GetCount() + geo_b->vtx.GetCount()))
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{
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Vector4 *pvtx = &geo_o->vtx[0];
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for (uint n = 0; n < geo_a->vtx.GetCount(); ++n)
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*pvtx++ = geo_a->vtx[n] * *mtx_a;
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for (uint n = 0; n < geo_b->vtx.GetCount(); ++n)
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*pvtx++ = geo_b->vtx[n] * *mtx_b;
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}
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// Append polygon.
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if (geo_o->binding.Allocate(geo_a->binding.GetCount() + geo_b->binding.GetCount()))
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{
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uint *pbind = &geo_o->binding[0];
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for (uint n = 0; n < geo_a->binding.GetCount(); ++n)
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*pbind++ = geo_a->binding[n];
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for (uint n = 0; n < geo_b->binding.GetCount(); ++n)
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*pbind++ = geo_b->binding[n] + geo_a->vtx.GetCount();
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}
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if (geo_o->pol.Allocate(geo_a->pol.GetCount() + geo_b->pol.GetCount()))
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{
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uint total_binding = 0;
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Polygon *ppol = &geo_o->pol[0];
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for (uint n = 0; n < geo_a->pol.GetCount(); ++n)
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{
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ppol->vtx_count = geo_a->pol[n].vtx_count;
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ppol->material = geo_a->pol[n].material;
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ppol->binding = &geo_o->binding[total_binding];
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total_binding += ppol->vtx_count;
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ppol++;
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}
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for (uint n = 0; n < geo_b->pol.GetCount(); ++n)
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{
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ppol->vtx_count = geo_b->pol[n].vtx_count;
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ppol->material = (ushort)(geo_b->pol[n].material + geo_a->material_table.GetCount());
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ppol->binding = &geo_o->binding[total_binding];
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total_binding += ppol->vtx_count;
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ppol++;
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}
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}
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// Append polygon normal.
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static Vector4 default_normal(0, 0, 1);
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if (geo_a->pol_normal || geo_b->pol_normal)
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if (geo_o->pol_normal.Allocate(geo_o->pol.GetCount()))
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{
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Vector4 *ppnrm = &geo_o->pol_normal[0];
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for (uint n = 0; n < geo_a->pol.GetCount(); ++n)
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{
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if (geo_a->pol_normal)
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{
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mtx_a->ApplyRotation(ppnrm, &geo_a->pol_normal[n]);
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*ppnrm++ = ppnrm->Normalized();
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}
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else
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*ppnrm++ = default_normal;
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}
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for (uint n = 0; n < geo_b->pol.GetCount(); ++n)
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{
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if (geo_b->pol_normal)
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{
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mtx_b->ApplyRotation(ppnrm, &geo_b->pol_normal[n]);
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*ppnrm++ = ppnrm->Normalized();
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}
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else
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*ppnrm++ = default_normal;
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}
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}
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// Append vertex normal.
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if (geo_a->vtx_normal || geo_b->vtx_normal)
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if (geo_o->vtx_normal.Allocate(geo_o->binding.GetCount()))
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{
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Vector4 *pvnrm = &geo_o->vtx_normal[0];
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for (uint n = 0; n < geo_a->binding.GetCount(); ++n)
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{
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if (geo_a->vtx_normal)
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{
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mtx_a->ApplyRotation(pvnrm, &geo_a->vtx_normal[n]);
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*pvnrm++ = pvnrm->Normalized();
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}
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else
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*pvnrm++ = Vector4(0, 0, 1);
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}
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for (uint n = 0; n < geo_b->binding.GetCount(); ++n)
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{
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if (geo_b->vtx_normal)
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{
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mtx_b->ApplyRotation(pvnrm, &geo_b->vtx_normal[n]);
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*pvnrm++ = pvnrm->Normalized();
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}
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else
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*pvnrm++ = Vector4(0, 0, 1);
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}
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}
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// Append RGB.
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if (geo_a->rgb || geo_b->rgb)
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if (geo_o->rgb.Allocate(geo_o->binding.GetCount()))
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{
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Color *prgb = &geo_o->rgb[0];
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for (uint n = 0; n < geo_a->binding.GetCount(); ++n)
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*prgb++ = geo_a->rgb ? geo_a->rgb[n] : Color::White;
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for (uint n = 0; n < geo_b->binding.GetCount(); ++n)
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*prgb++ = geo_b->rgb ? geo_b->rgb[n] : Color::White;
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}
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// Append all UV channels.
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static Vector2 default_uv(0.5, 0.5);
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for (uint n = 0; n < __UV_PER_GEOMETRY__; ++n)
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if (geo_a->uv[n] || geo_b->uv[n])
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if (geo_o->uv[n].Allocate(geo_o->binding.GetCount()))
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{
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Vector2 *puv = &geo_o->uv[n][0];
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if (geo_a->uv[n])
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for (uint v = 0; v < geo_a->binding.GetCount(); ++v)
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*puv++ = geo_a->uv[n][v];
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else
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for (uint v = 0; v < geo_a->binding.GetCount(); ++v)
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*puv++ = default_uv;
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if (geo_b->uv[n])
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for (uint v = 0; v < geo_b->binding.GetCount(); ++v)
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*puv++ = geo_b->uv[n][v];
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else
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for (uint v = 0; v < geo_b->binding.GetCount(); ++v)
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*puv++ = default_uv;
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}
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// Append all materials.
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geo_o->material_table.Allocate(geo_a->material_table.GetCount() + geo_b->material_table.GetCount());
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Geometry::MaterialSlot *pslot = geo_o->material_table.c_ptr();
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for (uint n = 0; n < geo_a->material_table.GetCount(); ++n)
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{
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pslot->name = geo_a->material_table[n].name;
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pslot->use_cache = geo_a->material_table[n].use_cache;
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++pslot;
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}
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for (uint n = 0; n < geo_b->material_table.GetCount(); ++n)
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{
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pslot->name = geo_b->material_table[n].name;
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pslot->use_cache = geo_b->material_table[n].use_cache;
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++pslot;
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}
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// Merge materials.
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geo_o->MergeDuplicateMaterials();
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return geo_o;
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}
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//------------------------------------------------------------------------------
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